What are Corns and Calluses?
Corns and calluses are hardening or thickening of the skin due to friction or rubbing. A corn is different from a callus in that it has a central core of hard material. The rubbing causes the skin to produce a layer of protective skin (a callus or a corn). Corns happen on top or between the toes while calluses happen on the bottom of the feet.
Causes
Improper fitting shoes are a leading cause of corns. Toe deformities, such as hammertoe, mallet toe, or claw toe also can lead to corns. Calluses typically develop under a metatarsal head (ball of the foot) due to abnormal structure or function of the foot.
Symptoms
Diagnosis
Your podiatrist can easily diagnose them clinically along with complete history of your symptoms. Sometimes you may be required to get x-rays to help determine the treatment protocol.